package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {
    /**
     * 动态条件查询购物车列表
     * @param shoppingCart 查询条件 -- 用户id + 菜品id/套餐id + 口味
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 根据id更新购物车中的商品数量
     * @param shoppingCart 要更新的购物车对象
     */
    @Update("update shopping_cart set number = #{number} where id = #{id}")
    void updateNumberById(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     * @param shoppingCart 购物车数据
     */
    @Insert("insert into shopping_cart (name, image, dish_id, setmeal_id, dish_flavor, number, amount, create_time, user_id) " +
            "values (#{name}, #{image}, #{dishId}, #{setmealId}, #{dishFlavor}, #{number}, #{amount}, #{createTime}, #{userId})")
    void insert(ShoppingCart shoppingCart);

    /**
     * 根据用户id删除购物车数据
     * @param currentId 用户id
     */
    @Delete("delete from shopping_cart where user_id = #{currentId}")
    void deleteByUserId(Long currentId);

    /**
     * 批量插入购物车数据
     *
     * @param shoppingCartList 购物车列表
     */
    void insertBatch(List<ShoppingCart> shoppingCartList);
}
